Allocate and print two dimensional array.

floor.c

#include <stdlib.h>
#include <stdio.h>

struct {
	int width;
	int height;
	char **tiles;
} typedef Floor;

Floor *new_floor(int width, int height) {
	if (width <= 0 || height <= 0) {
		return NULL;
	}

	Floor *floor = malloc(sizeof(Floor));

	if (floor == NULL) {
		return NULL;
	}

	floor->width = width;

	floor->height = height;

	floor->tiles = malloc(sizeof(char*) * width);

	if (floor->tiles == NULL) {
		free(floor);

		return NULL;
	}

	int x;
	int y;

	for (x = 0; x < width; x++) {
		floor->tiles[x] = malloc(sizeof(char) * height);

		if (floor->tiles[x] == NULL) {

			for (y = 0; y < x; y++) {
				free(floor->tiles[y]);
			}

			free(floor->tiles);

			free(floor);

			return NULL;
		}

		for (y = 0; y < height; y++) {
			floor->tiles[x][y] = '#';
		}
	}

	return floor;
}

int main(int argc, char **argv) {
	int width = 10;
	int height = 10;

	Floor *floor = new_floor(width, height);

	if (floor == NULL) {
		return 1;
	}

	int x;
	int y;

	for (x = 0; x < width; x++) {
		for (y = 0; y < height; y++) {
			printf("%c", floor->tiles[x][y]);
		}

		printf("\n");
	}

	for (x = 0; x < width; x++) {
		free(floor->tiles[x]);
	}

	free(floor->tiles);

	free(floor);

	return 0;
}